Hunter ICore is Turning on Two Stations at a Time.

I had a hunter ICore(16 zones) installed last year and
it has done a great job. I also added a Hunter Et/weather station that
has worked well with the ICore. This year my system has decided to act
up a little. I ran a 5 minute test on every station yesterday to make
sure the patterns were still good and I noticed that station 1 would
come on with 7, 2 came on with 8, 3 came on with 9,... . Stations 1- 6
run without additional stations coming on. The only change that I have
made was to make program B on the ICore run two drip stations(13 and 14)
for two vegetable gardens I installed. This is the only program on the
ICore and zone 14 wasn't used before this year. The Et station runs the
ICore and has done a great job on my seeded(TTTF) backyard.

I'm not sure if I should check for a wiring, programming or equipment problem.